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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,402,299 | 1,028,285 | 53,461 |
| 2006 | $2,960,560 | 108,608 | 106,997 |
| 2007 | $5,099,564 | 87,998 | 131,157 |
| 2008 | $3,331,808 | 68,812 | 107,995 |
| 2009 | $2,047,806 | 34,699 | 75,999 |
| 2010 | $4,265,013 | 78,522 | 202,348 |
| 2011 | $4,388,117 | 69,937 | 208,272 |
Note: Quantity represents Number of pairs
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